/* -*-c++-*- */
/* osgGIS - GIS Library for OpenSceneGraph
 * Copyright 2007-2008 Glenn Waldron and Pelican Ventures, Inc.
 * http://osggis.org
 *
 * osgGIS is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

#ifndef _OSGGIS_ELEVATION_GRID_H_
#define _OSGGIS_ELEVATION_GRID_H_ 1

#include <osgGIS/Common>
#include <osgGIS/GeoPoint>

namespace osgGIS
{
    /* (work in progress - no public api docs yet)
     *
     * A georeferenced grid of elevation values that you can query for height values.
     */
    class OSGGIS_EXPORT ElevationGrid : public osg::Referenced
    {
    public:
        virtual bool getHeight( const GeoPoint& point, double& out_result ) const =0;
    };
}


#endif // _OSGGIS_COLLECTION_FILTER_H_
